I picked up a set of dies with accessories on Ebay from a guy that thought it was Gunsmithing supplies. Got them for a song and dance. That said I have never swaged bullets before and would like to give it a try with my pre 82 Rock Chucker. The issue I have is that the punch holder for the Biehler dies uses a 9/16"-16 thread. What are my options? Adapter to go in existing shell holder groove? New solid ram? Any help would be appreciated.